The oil distribution plate, in the hydraulic motor or pump, plays the role of high and low oil distribution, so that the motor or pump in the role of high pressure oil output torque, low pressure oil (return oil) to stop the output torque in the plunger cavity of the high pressure oil discharge.

Powder metallurgy, the raw material used to make the oil distribution discs, has a unique porous structure that makes the processing of powder metallurgy parts more difficult.

Currently, the tools commonly used for machining powder metallurgy parts are: carbide tools, ceramic tools and cubic boron nitride (CBN) tools.

CBN tools made by WSS machining are used for machining powder metallurgy oil distribution discs by means of turning, VC (m/min) can reach 60m/min, f (mm/rev) equals 0.03mm/rev, Ap (mm) equals 2.5mm; the machining efficiency can be increased while ensuring the quality of the machined surface.

The cases are as follows

Tool drawing number: 071026

Machine type: Horizontal lathe

Workpiece name: Oil distribution plate

Workpiece material: powder metallurgy

Material hardness: HRC30°

Workpiece diameter: φ16

Roughness: Ra0.8

Machining method: Turning

Machining process: Rough and fine grooving